<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区 -->
    <el-card class="box-cerd">
      <!-- 搜索与添加区 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- clearable:清空内容   clear：这是一个单独的属性，没有在下面定义，触发时候重新渲染页面 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button
            type="primary"
            class="addBtn"
            @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userlist" border>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch> </template
          >>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="success"
                icon="el-icon-setting"
                size="mini"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 添加用户模态框 -->
    <!-- addDialogVisible控制显示与隐藏 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="uaername">
          <el-input v-model='addForm.username'></el-input>
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model='addForm.password'></el-input>
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model='addForm.email'></el-input>
        </el-form-item>

        <el-form-item label="手机" prop="mobile">
          <el-input v-model='addForm.mobile'></el-input>
        </el-form-item>
      </el-form>

      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户按钮的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import axios from "axios"
export default {
  data() {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;

      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }

      cb(new Error("请输入合法的邮箱"));
    };

    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^1[34578]\d{9}$/;

      if (regMobile.test(value)) {
        return cb();
      }

      cb(new Error("请输入合法的手机号"));
    };
    return {
      // 获取用户列表的参数的对象
      queryInfo: {
        // query：搜索关键字
        query: "",
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 5,
      },
      userlist: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          {
            required: true,
            message: "请输入用户名",
            trigger: "blur",
          },
          {
            min: 3,
            max: 10,
            massage: "用户名的长度在3~10个字符之间",
            trigger: "blur",
          },
        ],
        password: [
          {
            required: true,
            message: "请输入密码",
            trigger: "blur",
          },
          {
            min: 6,
            max: 12,
            massage: "密码的长度在6~12个字符之间",
            trigger: "blur",
          },
        ],
        email: [
          {
            required: true,
            message: "请输入邮箱",
            trigger: "blur",
          },
          {
            validator: checkEmail,
            trigger: "blur",
          },
        ],
        mobile: [
          {
            required: true,
            message: "请输入电话",
            trigger: "blur",
          },
          {
            validator: checkMobile,
            trigger: "blur",
          },
        ],
      },
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象保存
      editForm: {},
      //修改表单的验证规则
      editFormRules: {
        email: [
          {
            required: true,
            message: "请输入用户邮箱",
            trigger: "blur",
          },
          {
            validator: checkEmail,
            trigger: "blur",
          },
        ],
        mobile: [
          {
            required: true,
            message: "请输入用户手机",
            trigger: "blur",
          },
          {
            validator: checkMobile,
            trigger: "blur",
          },
        ],
      },
    };
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      // 下面代码释义：data属性获取到数据，将data重命名为res
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      }); //user:请求地址; get参数利用params指定; data存放私有数据，填写接口文档中必须请求的参数
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！');
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
      // console.log(newSize);
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    async userStateChanged(userinfo) {
      // console.log(userinfo);
      // 请求方法：put  请求路径： users/:uld/state/:type
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新状态失败")
      }
      this.$message.success("更新状态成功")
    },
    // 监听 添加用户对话框的关闭事件  resetFields清空
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮添加新用户
    addUser() {
      // 提交请求前，表单预验证 
      this.$refs.addFormRef.validate(async valid => 
      {
        // console.log(valid)
        // 表单预校验失败
        if (!valid) return
        // 可以发起添加用户的网络请求
        const {data: res} = await this.$http.post('users',this.addForm)
        console.log(addForm.username)
        if (res.meta.status !== 201) {
          this.$message.error("添加用户失败！")
        }

        this.$message.success("添加用户成功！")
        // 隐藏添加用户对话框
        this.addDialogVisible = false;
        // 重新获取用户列表数据
        this.getUserList()
      });
    },
    // 展开修改用户信息按钮的对话框
    async showEditDialog(id) {
      // console.log(id)
      const { data: res } = await this.$http.get("users/" + id)
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败")
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户信息按钮的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 修改用户信息框确定按钮  提交信息
    editUserInfo() {
      // 进行预验证，验证的结构通过validate拿到
      this.$refs.editFormRef.validate(async (valid) => {
        // console.log(valid);
        if (!valid) return;
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200) {
          return this.$message.error("更新用户信息失败");
        }
        // 更新用户信息成功了需要先隐藏用户信息框，还需重新获取用户的列表更新里面的信息，最后提示用户更新成功
        // 1.关闭
        this.editDialogVisible = false;
        // 2.更新列表，只需要重新调用  this.getUserList()
        this.getUserList();
        // 3.提示修改成功
        this.$message.success("更新用户信息成功！");
      });
    },
    // 根据传过来id删除对应的数据
    async removeUserById(id) {
      // 不应该直接删除 而是应该弹框询问用户是否删除数据
      const confirmRasult = await this.$confirm('此操作将永久删除该管理员, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(error => error)

      // 如果用户确认了删除，则返回字符串 confirm
      // 如果用户取消了删除，则返回字符串 cancel
      // console.log(confirmRasult);
      if (confirmRasult === 'cancel') {
        return this.$message.info('已经取消删除')
      }

      const {data: res} = await this.$http.delete('users/' + id)

      if(res.mate.status !== 200) {
        return this.$message.info('删除用户失败!')
      }

      this.$message.success('删除用户成功!')
      this.getUserList()
    },
  },
 
};
</script>

<style scoped land = "less">
.el-breadcrumb {
  margin-bottom: 15px;
}

.text {
  font-size: 14px;
}

.item {
  padding: 18px 0;
}

.box-cerd {
  /* width: 480px; */
  line-height: 10px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15) !important;
}

.addBtn {
  margin-left: -100px;
  padding: 12px;
}

.el-pagination {
  margin-top: 25px;
  margin-left: -60%;
}
</style>